@headerHeight: 64px;

.header{
  position: relative;
  height: @headerHeight;
  box-shadow: 0 2px 8px #f0f1f2;
}
@headerLeftWidthPercent: 50%;

.header-left,.header-right{
  display: inline-block;
  height: 100%;
}
.header-left{
  float: left;
  width: @headerLeftWidthPercent;
}
.header-right{
  float: right;
  width: 100% - @headerLeftWidthPercent;
}
.selectList{
  margin: 0;
  list-style-type:none;
}
.selectList li{
  border-top: 2px solid transparent;
  transition: border 0.5s ease;
  text-align:center;
  height: @headerHeight;
  float: left;
  padding: 0 20px;
}
.selectList li a{
  font-size: 14px;
  color: #000000;
  text-decoration:none;
  line-height: @headerHeight;
}

.selectList li:hover{
  border-top: 2px solid #1890ff;
}
.selectList li:hover a{
  color: #1890ff;
}